CN102350014B - Infusion set - Google Patents
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- CN102350014B CN102350014B CN 201110265858 CN201110265858A CN102350014B CN 102350014 B CN102350014 B CN 102350014B CN 201110265858 CN201110265858 CN 201110265858 CN 201110265858 A CN201110265858 A CN 201110265858A CN 102350014 B CN102350014 B CN 102350014B
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- 239000007788 liquid Substances 0.000 claims abstract description 205
- 239000003814 drug Substances 0.000 claims abstract description 105
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000001990 intravenous administration Methods 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 239000011148 porous material Substances 0.000 claims abstract description 21
- 239000012528 membrane Substances 0.000 claims abstract description 19
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The invention relates to an infusion set and belongs to the technical field of medical apparatus and instruments. The infusion set comprises a puncture outfit, an upper conduit of a drop funnel, a drip tube, the drop funnel, a lower conduit of the drop funnel, a regulator and an intravenous needle which are sequentially connected. The liquid outlet end of the intravenous needle is sleeved with a sealing sleeve; an air exhaust pipe is arranged between the drop funnel and the lower conduit of the drop funnel; at least one air exhaust hole is formed at one end, which is positioned in an inner cavity of the drop funnel, of the air exhaust pipe; a liquid medicine passing membrane made from a material which is permeated by water is arranged above the air exhaust pipe; a group of pores are formed on the liquid medicine passing membrane; the liquid medicine passing membrane allows liquid medicine and gas to pass through but blocks insoluble granules with the diameter of greater than the diameter of the pores in the liquid medicine; the sealing sleeve seals the liquid outlet end of the intravenous needle; and an air filter is arranged on the sealing sleeve. The infusion set is simple in structure and has self-exhausting and automatic liquid-stopping functions.
Description
Technical field
The invention belongs to technical field of medical instruments, be specifically related to a kind of from aerofluxus and the automatic transfusion device that ends liquid.
Background technology
Transfusion device is a kind of medical apparatus commonly used, after transfusion device inserts medicine bottle, before carrying out the human body puncture, it is residual that the dropping funnel downcomer that must make transfusion device there is no bubble until the full medicinal liquid of intravenous needle, to prevent that bubble is transfused to human body and causes the dead or chronic blood vessel embolism of acute bubble thromboembolism, this process is called aerofluxus.The used transfusion device of medical institutions all requires the manual aerofluxus of medical personnel at present, namely be inverted dropping funnel or choke the dropping funnel downcomer on the other hand to death by medical personnel, another hands is decontroled after pinching flat dropping funnel, utilize under the dropping funnel elastic recovery and inhale medicinal liquid, hold about half of dropping funnel height until medicinal liquid several times repeatedly, wait for 3-5s again, after the bubble of sneaking into the dropping funnel inner liquid medicine is separated out, just putting dropping funnel or unclamping the conduit of choking to death makes bubble-free medicinal liquid flow into the dropping funnel downcomer until overflowing from the intravenous needle front end, last stuck actuator is finished exhaust process.This process is more consuming time, accounts for whole 1/3rd times of transfusion operation, and under patient's hurry situation of many times, it is residual aerofluxus to occur; Operation requiring height to be unfavorable for that the abecedarian grasps, may be because operation mistake or unskilledly cause a large amount of wastes of medicinal liquid or aerofluxus residual; And because also there is the aerofluxus dead angle in the defective of transfusion device circuit design, cause place, dead angle bubble to be difficult to get rid of.
When the nurse changed the bottle operation in addition, actuator was closed in operation earlier routinely, and perforator is inserted second bottle, open actuator again, if only the liquid medicine is liquid, no gas cavity below crossing film, promote regulating wheel when then closing actuator downwards,, ended the water that the liquid medicine crosses in the film and inhaled down by drop-down by the medicinal liquid that stopped, gas only enters the liquid medicine and crosses film, insert second bottle when opening actuator again, bubble enters only the liquid medicine and crosses the film below, flows into the dropping funnel downcomer, occurs exhausting problem when causing changing bottle.When the nurse changes the bottle operation, second bottle of bottle often occur and press too high situation simultaneously, too high bottle is pressed and is played the effect same with downward promotion regulating wheel, exhausting problem can occur equally.
Do not have a kind of transfusion device in the prior art and can solve above technical problem simultaneously.
Summary of the invention
Problem at prior art exists the objective of the invention is to design the technical scheme that a kind of transfusion device is provided.This transfusion device is simple in structure, and has from aerofluxus and the automatic liquid function of ending.
Described a kind of transfusion device, comprise the perforator that connects successively, the dropping funnel upper conduit, dropper, dropping funnel, the dropping funnel downcomer, actuator and intravenous needle, the socket of intravenous needle liquid outlet arranges sealing shroud, it is characterized in that between described dropping funnel and the dropping funnel downcomer exhaustor being set, exhaustor is arranged on the end of dropping funnel inner chamber of dropping funnel a steam vent is set at least, the top of exhaustor is equipped with by making water invade the liquid medicine that ends that the profit action material makes to its generation and crosses film, described only liquid medicine is crossed one group of pore is set on the film, ending the liquid medicine crosses film and allows medicinal liquid and gas to pass through, can stop that diameter in the medicinal liquid passes through greater than the insoluble granule in its capillary aperture, the liquid outlet of described sealing shroud sealing intravenous needle, and sealing shroud is provided with air filter.
Described a kind of transfusion device is characterized in that the described liquid medicine that ends crosses the dropping funnel inner chamber that film is arranged at dropping funnel.
Described a kind of transfusion device is characterized in that the described liquid medicine that ends crosses in the housing that film is arranged at the dropper top.
Described a kind of transfusion device is characterized in that described only liquid medicine arranges thick effect filter membrane above crossing film, and the filter opening diameter of slightly imitating filter membrane is 10 μ m～25 μ m.
Described a kind of transfusion device is characterized in that the angle that described only liquid medicine is crossed the axis of film and dropping funnel is 45～135 degree.
Described a kind of transfusion device is characterized in that describedly ending the liquid medicine to cross film thickness being 0.3mm～3mm, and ending the liquid medicine, to cross the film diameter be 12mm～50mm.
Described a kind of transfusion device is characterized in that the pore diameter that described only liquid medicine is crossed film is 3 μ m～10 μ m.
Described a kind of transfusion device is characterized in that the capillarity that described only liquid medicine is crossed the pore of film is higher than 0.4m highly at least to drawing high of water.
Described a kind of transfusion device is characterized in that described exhaustor top arranges water deflector cover.
Described a kind of transfusion device is characterized in that described steam vent is elongated hole, and its upper end width becomes the end narrow top width shape structure greater than the lower end width.
Described a kind of transfusion device, it is characterized in that described air filter be ventilation can make medicinal liquid automatically full whole the transfusion device time be 7s～20s, the water infiltrate aeration porous membrane that has water preventing ability and can stop at least to have 0.7m hydraulic pressure.
Above-mentioned a kind of transfusion device, simple in structure, reasonable in design, the lower end of dropping funnel is arranged the exhaustor with steam vent, above exhaustor, arrange to end the liquid medicine and cross film, and the intravenous needle liquid outlet arranges the sealing shroud of band air filter, make whole transfusion device have from aerofluxus and end the liquid function automatically.
Compare with existing transfusion device, the present invention has the following advantages:
1. save the transfusion operation time: after transfusion device inserts medicine bottle, the transfusion device automatic vent, and control evacuation time at 10～15 seconds, medical personnel prepare can tie up punctures such as sphygmomanometer cuff and skin degerming between exhaust cycle before;
2. aerofluxus is stable, is not subjected to the influence of operator and operating time, and is safe;
3. aerofluxus is thorough, does not have the aerofluxus dead angle;
4. it is simple to operate to change bottle, realizes that automatization ends the liquid operation, and medical personnel need not to carry out manually to end liquid, and solves the exhausting problem when changing bottle.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of another embodiment among the present invention.
Among the figure: the 1-perforator; 2-dropping funnel upper conduit; The 3-dropper; The 301-housing; The 4-dropping funnel; 401-dropping funnel inner chamber; 5-is slightly imitated filter membrane; 6-ends the liquid medicine and crosses film; The 7-water deflector cover; The 8-exhaustor; The 801-steam vent; 9-dropping funnel downcomer; The 10-actuator; The 11-intravenous needle; The 12-sealing shroud; The 13-air filter.
The specific embodiment
Further specify the present invention below in conjunction with Figure of description.
As shown in Figure 1, the perforator 1, dropping funnel upper conduit 2, dropper 3, dropping funnel 4, dropping funnel downcomer 9, actuator 10, intravenous needle 11 and the sealing shroud 12 that connect successively of a kind of transfusion device.Between dropping funnel 4 and the dropping funnel downcomer 9 exhaustor 8 is set.Exhaustor 8 upper ends are stretched in the dropping funnel inner chamber 401 of dropping funnel 4, middle part and the sealing of dropping funnel 4 lower port, and the lower end is connected with dropping funnel downcomer 9.Exhaustor 8 upper ends of stretching into dropping funnel 4 arrange a steam vent 801 are set at least, and steam vent 801 is elongated hole, and the upper end width becomes the end narrow top width shape structure greater than the lower end width.The top of exhaustor 8 fixedly installs water deflector cover 7, and water deflector cover 7 can be pyramidal structure, mushroom construction etc.
The top of exhaustor 8 is equipped with only the liquid medicine and crosses film 6, ends the liquid medicine and crosses in the dropping funnel inner chamber 401 that film 6 is arranged on dropping funnel 4.Only the liquid medicine is crossed one group of pore is set in the film 6, allow medicinal liquid and gas to pass through, can stop that diameter in the medicinal liquid passes through greater than the insoluble granule in its capillary aperture, and ending the liquid medicine crosses film 6 and adopts and make water invade the material manufacture of profit effect to its generation, as cellulose mixture film, nylon membrane or polyester core pore membrane etc., be that the liquid surface shape of water in pore is spill, capillarity rises water and draws effect, and pore can allow degree of drawing high waterborne be higher than 0.4mm at least.Ending the liquid medicine, to cross film 6 thickness be 0.3mm～3mm, and ending the liquid medicine, to cross film 6 diameters be 12mm～50mm, and the pore diameter is 3 μ m～10 μ m.When arranging, ending the liquid medicine, to cross the angle of film 6 and the axis of dropping funnel 4 be 45～135 degree, when namely guaranteeing actual the use, ends the liquid medicine and cross film 6 and be no more than 45 degree with horizontal plane angle, to guarantee that capillarity is to the effectively conduction of the effect that draws high of medicinal liquid.Can also cross and one deck is set above the film 6 at least slightly imitate filter membrane 5 ending the liquid medicine simultaneously, slightly imitating filter membrane 5 filter opening diameters is 10～25 μ m.The thick filter membrane 5 of imitating can be arranged on the upper surface that liquid medicine is only crossed film 6, can be not yet with end the liquid medicine and cross film 6 and contact.
Socket arranges sealing shroud 12 on the intravenous needle 11 of transfusion device tail end, the liquid outlet of sealing shroud 12 sealing intravenous needles 11.And at sealing shroud 12 air filter 13 is set, air filter 13 is aeration porous membrane (can buy in market), it is 7s～20s that ventilation can make automatically full whole transfusion device time of medicinal liquid, and this diaphragm has water preventing ability simultaneously, can stop the water infiltrate with 0.7m hydraulic pressure at least.
During use, perforator 1 is inserted medicine bottle, medicinal liquid flows through perforator 1 successively, dropping funnel upper conduit 2 and dropper 3, enter dropping funnel inner chamber 401, imitate filter membrane 5 and end the liquid medicine and gather above crossing film 6 thick, when ending the liquid medicine and cross film 6 and all covered by water, only the liquid medicine is crossed film 6 top dropping funnel inner chambers 401 becomes dead space, medicinal liquid continues to drip from dropper 3 under effect of inertia subsequently, and gas in the compression dead space forms positive air pressure, pressed only the liquid medicine to cross film 6 medicinal liquid, and ended the liquid medicine and cross film 6 beginnings and ooze medicinal liquid downwards.
After medicinal liquid flows into exhaustor 8, further flow into dropping funnel downcomer 9, and the accumulation along with kinetic energy, its flow velocity is accelerated, gas also accelerates to discharge from air filter 13 in the conduit, but because the ventilation of air filter 13 is limited, the gas velocity of discharge limits to some extent, and then restriction medicinal liquid flow velocity in dropping funnel downcomer 9.If the medicinal liquid flow velocity is too fast, will produce two kinds of bubbles, first kind, medicinal liquid flow velocity in dropping funnel downcomer 9 is too fast, ends the liquid medicine and crosses film 6 and ooze medicinal liquid down and do not replenish, and causes the medicinal liquid liquid level decline of dropping funnel inner chamber 401 lower ends, steam vent 801 is open-minded again, causes bubble to suck; Second kind, flow velocity is more big, and impact bubble kinetic energy is more big, might break through the surface tension barrier effect of steam vent 801, sneaks into bubble.The present invention is adjusted into 7-20s by air filter 13 with the automatic vent time, prevents that effectively bubble from entering dropping funnel downcomer 9, and if above 20s, then may surpass the nurse to patient's required time of sterilizing, after namely causing the nurse to finish sterilization, automatic vent is not finished as yet, loses time.
After medicinal liquid flows to air filter 13, because air filter 13 can stop that at least (whole the about 1.5m of transfusion device length considers bending to the hydraulic pressure of 0.7m, actual vertical height is near 0.7m), medicinal liquid can't pass through air filter 13, stops automatically, finishes omnidistance from aerofluxus.Because medicinal liquid can stop automatically by air filter 13, so aerofluxus need not nurse's nurse, the nurse can the limit automatic vent, and next step patient's sterilization is carried out on the limit, and its operation is saved 10-15s than routine operation.And general self-venting transfusion device, all be that the dropping funnel part is from aerofluxus, can't realize dropping funnel downcomer 9 from aerofluxus, but by nurse guard, treat that intravenous needle 11 goes out stuck actuator 10 behind the medicinal liquid, can't stop automatically, namely before finishing aerofluxus, the nurse can't carry out next step operation, and is so-called from aerofluxus, just save operating procedure, can not save the operating time.Air filter 13 can be isolated intravenous needle 11 and extraneous contacting in addition, prevents that intravenous needle is contaminated.
After the nurse finished patient's sterilization, stuck actuator 10 was pulled out sealing shroud 12, and patient is punctured, after puncture finishes, open actuator 10, medicinal liquid flows down smoothly and infuses that (ending the liquid medicine this moment crosses film 6 tops medicinal liquid is arranged, ingress of air does not form capillarity, does not stop that medicinal liquid flows down).
When first bottle hung after, if the nurse can not in time change bottle or consider and will take full advantage of medicinal liquid, to end the liquid medicine and cross dropping funnel inner chamber 401 inner liquid medicines of film 6 tops and will flow to end, cross the pore of film 6 with regard to regard to ending the liquid medicine this moment, its top is air, be water in it, form liquid level, end the liquid medicine and cross film because water can be invaded profit, so liquid level is spill, the spill liquid level can on draw liquid, draw effect with highly weighing in the formation, the water column lifting height is:
Herein: γ=surface tension; θ=contact angle; ρ=fluid density; G=acceleration of gravity; R=tubule radius
Work as θ〉90 degree, this expression meniscus is convex surface; H＜0 represents that fluid descends at capillary tube simultaneously, and namely hydrargyrum is in the situation of glass tubing.
For on the sea level, adorned the glass tubing of water,
γ?=?0.0728?J?m-2
θ?=?20°
ρ?=?1000?kg?m-3
g?=?9.8?m?s-2
Liquid-column height is:
According to this equation, in theory in 1 meter wide glass tubing of radius, water can rise 0. 000 014 meters (so the utmost point is not easy to be discovered); And in the capillary glass tube of diameter 10 μ m, water can rise 2.8 meters.In the capillary glass tube of diameter 3 μ m, the water 9.24m that can rise.Consider to end the liquid medicine and cross film 6 materials and be different from glass, actually draw high highly about 0.4m to 1m, can contend with and end the liquid medicine and cross below the film 0.4m suction under the water column of 1m.End the liquid medicine in addition and cross air chamber between the medicinal liquid of film 6 and dropping funnel inner chamber 401 lower ends, do not influence the conduction of pressure.
Ending the liquid medicine, to cross film 6 pore apertures more little, draw high highly more high, the hydraulic pressure resistance ability is more strong, stopped up by the insoluble granule in the medicinal liquid easily but pore is too small, cause flow velocity to descend, can't reach national transfusion device standard (infusion flow rate of stipulating among the gb8368-2005 must reach 10 minutes and flow out normal saline 1000ml), so the pore aperture can not be less than 3 μ m, and add thick effect filter membrane 5 above crossing film 6 ending the liquid medicine in case of necessity, (greater than 10 μ m) filter in advance to microgranule bigger in the medicinal liquid, and keep ending the liquid medicine, to cross film 6 unobstructed.End the liquid medicine in addition and cross film 6 membrane areas at least greater than the circle of diameter 12mm, area is not easy greatly to stop up.End the liquid medicine in addition and cross film 6 thickness more preferably greater than 0.3mm, strengthen capillarity, can suitably amplify the pore aperture, improve flow velocity, but the pore diameter should not surpass 10 μ m.End the liquid medicine in addition and cross film 6 maintenance level as far as possible in use, if with horizontal plane angle greater than 45 degree, then the capillary power of drawing high is difficult to conduction.
The existence of the medicinal liquid of dropping funnel inner chamber 401 lower ends can be played cushioning effect, crosses film 6 and ends after the liquid overlong time lost efficacy ending the liquid medicine, can prevent that also medicinal liquid from flowing to end at once, prevents that bubble from entering conduit at once.
Owing to end the capillarity that the liquid medicine is crossed film 6, medicinal liquid stops at only the liquid medicine and crosses film 6, but ending the liquid medicine crosses the meagre medicinal liquid layer of film 6 belows and will constantly ooze down, and can't be replenished, so ended behind the liquid about 3 minutes, end the liquid medicine and cross the medicinal liquid layer disappearance of film 6 belows, cross film 6 pores to ending the liquid medicine this moment, its below has also formed liquid level, this liquid level was spill upwards originally, but cross the vacuum suction effect of 6 times liquid of film (crossing the gas cavity conduction of film 6 belows by ending the liquid medicine) owing to end the liquid medicine, the below liquid level forms downward spill, further stop liquid to dirty, namely in case end the liquid medicine and cross the medicinal liquid layer of film 6 belows and disappear, end the liquid medicine and cross ending the liquid effect and will further strengthening of film 6.
Simultaneously, when the nurse changes the bottle operation, often exist second bottle of bottle to press too high situation (when the nurse makes up a prescription, the a certain amount of medicinal liquid of general extraction earlier, the medicinal liquid that the same amount of reinjecting prepares, but because when taking out medicine, gas will be sucked by negative pressure from needle tubing and bottle stopper gap, so often there is the 5-15kpa malleation in the medicine bottle of allotting, be equivalent to 0.5-1.5m hydraulic pressure, and whole transfusion device hydraulic pressure is also with regard to 1.5m, the malleation that causes so make up a prescription is very high, and after the nurse prepares this bottle, generally stops up puncturing hole with Cotton Gossypii and adhesive tape and prevent that medicinal liquid from contacting with the external world, and the inversion medicine bottle, so malleation is in case form and can't gush).If adopt the sealing floating plug to end liquid, press to down as too high bottle and be transmitted in the dropping funnel, causing sealing floating plug can't float, even the nurse chokes dropping funnel downcomer and extruding to death, also can only temporarily float the sealing floating plug, along with liquid at high speed is dirty, floating plug is often inhaled down again stops up liquid outlet; If ending the liquid medicine, employing crosses film, and should end the liquid medicine crosses the film below and does not have air chamber (the present invention end liquid medicine cross between film 6 and dropping funnel inner chamber 401 lower end medicinal liquids have air chamber), then when second bottle of transfusion device insertion, after opening actuator 10 again, the bottle internal gas pressure is transmitted in the dropping funnel inner chamber 401, to end the liquid medicine crosses in the film 6 liquid and extrudes and end the liquid medicine and cross film 6, gas enters only the liquid medicine and crosses film 6 belows, treat that liquid covers when only the liquid medicine is crossed film 6 again, only the liquid medicine is crossed film 6 belows and has been formed the bubble that can't go up row, causes changing a bottle exhausting problem.High bottle is pressed the problem of the above two kinds of structures that cause, the measure that general employing is offered air bleeding valve at dropping funnel 4, can effectively alleviate air pressure, but dropping funnel sets up air bleeding valve to exist cost to increase problem, and the gas inspection method of transfusion device producer employing at present can't detection itself just allow the air bleeding valve edge of ventilation have or not gas leakage at all, in case occur that the air bleeding valve ovfl will cause liquid medicine contamination and serious problems such as can't infuse, in addition, even the air bleeding valve edge is air tight, air bleeding valve also can only carry out to a certain degree filtration to air, secluding air fully will cause new liquid medicine contamination after all, so set up air bleeding valve to have very big drawback.And the present invention crosses film and sets up exhaustor 8 for 6 times ending the liquid medicine, and form to end the liquid medicine and cross air chamber between film 6 and dropping funnel inner chamber 401 lower end medicinal liquids, even high bottle is pressed and is made gas only enter the liquid medicine to cross film 6 times, it is nothing but the volume that increases this air chamber, because the existence of exhaustor 8, gas can't enter dropping funnel downcomer 9 harmful to human.
When the nurse changes the bottle operation in addition, promote the stuck actuator 10 of regulating wheel to the transfusion device tail end earlier, its effect is equivalent to cross film 6 and apply extra following suction ending the liquid medicine, to cause bubble to enter only the liquid medicine and cross film 6 belows, but cross air chamber and exhaustor 8 between film 6 and dropping funnel inner chamber 401 lower end medicinal liquids owing to exist to end the liquid medicine, this bubble does not enter dropping funnel downcomer 9.If adopt the method for being inverted actuator to solve, then cause new problem, namely when aerofluxus finishes the stuck actuator 10 in back, the regulating wheel of retrodicting causes intravenous needle 11 to be inhaled into gas, and the intravenous needle 11 of band gas is that strictness forbids puncturing into human body, if keep intravenous needle 11 no gases, then can only open actuator 10, under the situation of intravenous needle 11 ejaculation medicinal liquids, carry out the human body puncture, so no matter how the nurse selects, all have critical defect.
On the basis of embodiment 1, cross in the housing 301 that film 6 is arranged at dropper 3 tops ending the liquid medicine.Its middle shell 301 can be one-body molded with dropper 3, also can split be arranged on separately in the conduit on dropper top.It also can reach the technique effect identical with embodiment 1.
Claims (7)
1. transfusion device, comprise the perforator (1) that connects successively, dropping funnel upper conduit (2), dropper (3), dropping funnel (4), dropping funnel downcomer (9), actuator (10) and intravenous needle (11), intravenous needle (11) liquid outlet socket arranges sealing shroud (12), it is characterized in that between described dropping funnel (4) and the dropping funnel downcomer (9) exhaustor (8) being set, exhaustor (8) is arranged on the end of dropping funnel inner chamber (401) of dropping funnel (4) steam vent (801) is set at least, the top of exhaustor (8) is equipped with by making water invade the liquid medicine that ends that the profit action material makes to its generation and crosses film (6), described only liquid medicine is crossed one group of pore is set on the film (6), the pore diameter is 3 μ m～10 μ m, the capillarity of pore is higher than 0.4m highly at least to drawing high of water, ending the liquid medicine, to cross the angle of film (6) and the axis of dropping funnel (4) be 45～135 degree, ending the liquid medicine crosses film (6) and allows medicinal liquid and gas to pass through, can stop that diameter in the medicinal liquid passes through greater than the insoluble granule in its capillary aperture, the liquid outlet of described sealing shroud (12) sealing intravenous needle (11), and sealing shroud (12) is provided with air filter (13), and described air filter (13) is 7s～20s for ventilation can make automatically full whole transfusion device time of medicinal liquid, have water preventing ability and can stop the water infiltrate aeration porous membrane with 0.7m hydraulic pressure at least.
2. a kind of transfusion device as claimed in claim 1 is characterized in that the described liquid medicine that ends crosses the dropping funnel inner chamber (401) that film (6) is arranged at dropping funnel (4).
3. a kind of transfusion device as claimed in claim 1 is characterized in that the described liquid medicine that ends crosses in the housing (301) that film (6) is arranged at dropper (3) top.
4. a kind of transfusion device as claimed in claim 1 is characterized in that described only liquid medicine arranges thick effect filter membrane (5) above crossing film (6), and the filter opening diameter of slightly imitating filter membrane (5) is 10 μ m～25 μ m.
5. a kind of transfusion device as claimed in claim 1 is characterized in that describedly ending the liquid medicine to cross film (6) thickness being 0.3mm～3mm, and ending the liquid medicine, to cross film (6) diameter be 12mm～50mm.
6. a kind of transfusion device as claimed in claim 1 is characterized in that described exhaustor (8) top arranges water deflector cover (7).
7. a kind of transfusion device as claimed in claim 1 is characterized in that described steam vent (801) is elongated hole, and its upper end width becomes the end narrow top width shape structure greater than the lower end width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110265858 CN102350014B (en) | 2011-09-09 | 2011-09-09 | Infusion set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110265858 CN102350014B (en) | 2011-09-09 | 2011-09-09 | Infusion set |
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| Publication Number | Publication Date |
|---|---|
| CN102350014A CN102350014A (en) | 2012-02-15 |
| CN102350014B true CN102350014B (en) | 2013-08-28 |
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|---|---|---|---|
| CN 201110265858 Active CN102350014B (en) | 2011-09-09 | 2011-09-09 | Infusion set |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580179A (en) * | 2012-03-20 | 2012-07-18 | 山东威高集团医用高分子制品股份有限公司 | Novel exhaust-free infusion set |
| CN102631733B (en) * | 2012-05-10 | 2014-04-30 | 浙江康泰医疗器械有限公司 | Automatic exhaust and liquid stop and anti-blood backflow high-speed precision intelligent security infusion set |
| CN103230637B (en) * | 2013-05-19 | 2015-05-20 | 江西科伦医疗器械制造有限公司 | Puncture outfit dropping bucket |
| CN104248787A (en) * | 2013-06-07 | 2014-12-31 | 江西丽华鑫朗药业科技有限公司 | Double-layered precision automatic infusion-stopping infusion set |
| CN104274886B (en) * | 2013-07-29 | 2016-09-07 | 江西丽华鑫朗药业科技有限公司 | A kind of precision automatic liquid stopping function bubble-proof transfusion device |
| CN103463712A (en) * | 2013-09-21 | 2013-12-25 | 杭州费尔过滤技术有限公司 | Application of PES (polyether sulfone) microporous membrane in automatic liquid stopper |
| CN103977472A (en) * | 2014-05-16 | 2014-08-13 | 姚力芝 | Transfusion burette |
| CN108434551B (en) * | 2018-04-13 | 2021-05-14 | 山东中医药大学 | Dropper with injection filtering function |
| CN108969843B (en) * | 2018-06-14 | 2023-06-09 | 南京市妇幼保健院 | Adjustable multi-medium transfusion dripping speed regulator |
| CN109758641A (en) * | 2019-01-31 | 2019-05-17 | 江苏义倍医疗科技股份有限公司 | Infusion pump adjusted filter infusion apparatus with flow |
| CN109893707A (en) * | 2019-04-16 | 2019-06-18 | 河南曙光汇知康生物科技股份有限公司 | A kind of bubble-free, full-automatic exhaust infusion set |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201618259U (en) * | 2010-02-08 | 2010-11-03 | 江西洪达医疗器械集团有限公司 | Bubble-free infusion device |
| CN201618225U (en) * | 2010-03-01 | 2010-11-03 | 江西洪达医疗器械集团有限公司 | Safe bubble-free transfusion device |
| CN201930309U (en) * | 2010-12-06 | 2011-08-17 | 江西洪达医疗器械集团有限公司 | Bubble-free anti-bleed-return infusion set |
| CN202263243U (en) * | 2011-09-09 | 2012-06-06 | 浙江康泰医疗器械有限公司 | Infusion device |
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Denomination of invention: Stepped speed regulating device of infusion apparatus Effective date of registration: 20190617 Granted publication date: 20130828 Pledgee: Zhejiang Rural Commercial Bank of China branch of Limited by Share Ltd. Pledgor: ZHEJIANG KANGTAI MEDICAL DEVICES Co.,Ltd. Registration number: 2019330000160 |
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Denomination of invention: an infusion set Effective date of registration: 20220729 Granted publication date: 20130828 Pledgee: Zhejiang Rural Commercial Bank of China branch of Limited by Share Ltd. Pledgor: ZHEJIANG KANGTAI MEDICAL DEVICES Co.,Ltd. Registration number: Y2022330001558 |